The exploration of High-resolution diffusion-weighted imaging(RESOLVE)in rectal tumor imaging

来源 :中华放射学学术大会2016、中华医学会第23次全国放射学学术大会暨中华医学会第24次全国影像技术学术大会 | 被引量 : 0次 | 上传用户:a0602141021
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  Purpose Discussion the display of rectal tumors on axial T2-weighted images combined with high-resolution diffusion-weighted imaging(RESOLVE).Materials and methods A total of 20 patients(12 males,8 females;39 to 78 years,mean age 45 years),who were pathologically diagnosed with rectal cancer at West China Hospital of Sichuan University between June 2015 and July 2015,were enrolled in this study.All patients were referred for a multi-paramedic MRI protocol on a Siemens 3.0T MRI-system(MAGNETON Trio,32-channel cardiac coil),consisting of a high-resolution,sagittal T2 TSE(slice thickness 2mm along the intestinal disease),coronal T2 TSE sequence(slice thickness 2mm along the intestinal disease),axial T2 TSE sequence(slice thickness 3mm vertical the intestinal disease)and RESOLVE(same slices and slice thickness as the axial T2 TSE sequence).Two experienced radiologists evaluated the MRI measurements,comparing the rectal tumors at the same slices on axial T2-weighted images and RESOLVE images displayed.Results On T2-weighted imaging the distinguish between tumor and fiber is good,Clearly show the structure around the tumor,Show complex structural component,not easily to distinguish relationship between tumor and surrounding tissue boundaries.High resolution diffusion-weighted imaging(RESOLVE)gets a good tissue contrast,can define the structures of the tumor well,display the rectal tumors shape,size,boundary and tissue density clearly,and less breathing motion artifacts affected.Combined with ADC value we can pre-sentence the benign and malignant of the rectal tumors.Conclusion High-resolution diffusion-weighted imaging(RESOLVE)can make up for lack of axial T2-weighted images display of rectal tumors,get more information about the image,provide better accurate diagnostic information.
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